"You can't take over a plane with a knife," he said in an interview on CBS television, because the cockpit doors are now secure.
"You've got to find the bombs, because a bomb will take down a plane, and if you're so busy fishing around looking for Swiss Army knives, it diverts your focus."
Hawley suggests allowing passengers to take liquids on flights with the proviso that those carrying bottles might have to join a queue to have them scanned (an idea the European Union is apparently going to implement next year).
And he also says the TSA should take a smarter approach to searches and pat-downs by targeting passengers whose behaviour indicates they could be a risk rather than body-searching 75-year-old grandmothers (the TSA is already taking an easier line with passengers under 12 and is about to trial the same approach with those over 75).
That's all good sense - even if it is a little belated - because most passengers have long realised that all the palaver over bottles of liquid and nail scissors is mere security theatre designed to give the impression of action rather than actually making us safer in the air.
I'm not holding my breath. But if a former TSA head can no longer see the point of what he once presided over, perhaps we are making progress.
Jim Eagles is a former editor of Herald Travel.